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https://www.readbyqxmd.com/read/28731372/exploring-the-effect-of-vitamin-d3-supplementation-on-the-anti-ebv-antibody-response-in-relapsing-remitting-multiple-sclerosis
#1
Linda Rolf, Anne-Hilde Muris, Amandine Mathias, Renaud Du Pasquier, Inga Koneczny, Giulio Disanto, Jens Kuhle, Sreeram Ramagopalan, Jan Damoiseaux, Joost Smolders, Raymond Hupperts
BACKGROUND: Epstein-Barr virus (EBV) infection and vitamin D insufficiency are potentially interacting risk factors for multiple sclerosis (MS). OBJECTIVES: To investigate the effect of high-dose vitamin D3 supplements on antibody levels against the EBV nuclear antigen-1 (EBNA-1) in patients with relapsing-remitting multiple sclerosis (RRMS) and to explore any underlying mechanism affecting anti-EBNA-1 antibody levels. METHODS: This study utilized blood samples from a randomized controlled trial in RRMS patients receiving either vitamin D3 (14,000 IU/day; n = 30) or placebo ( n = 23) over 48 weeks...
July 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28729867/exposure-to-the-epstein-barr-viral-antigen-latent-membrane-protein-1-induces-myelin-reactive-antibodies-in-vivo
#2
Yakov Lomakin, Georgii Pavlovich Arapidi, Alexander Chernov, Rustam Ziganshin, Evgenii Tcyganov, Irina Lyadova, Ivan Olegovich Butenko, Maria Osetrova, Natalia Ponomarenko, Georgy Telegin, Vadim Markovich Govorun, Alexander Gabibov, Alexey Belogurov
Multiple sclerosis (MS) is an autoimmune chronic inflammatory disease of the central nervous system (CNS). Cross-reactivity of neuronal proteins with exogenous antigens is considered one of the possible mechanisms of MS triggering. Previously, we showed that monoclonal myelin basic protein (MBP)-specific antibodies from MS patients cross-react with Epstein-Barr virus (EBV) latent membrane protein 1 (LMP1). In this study, we report that exposure of mice to LMP1 results in induction of myelin-reactive autoantibodies in vivo...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28726768/characterization-and-purification-of-bergamottin-from-citrus-grandis-l-osbeck-cv-yongjiazaoxiangyou-and-its-antiproliferative-activity-and-effect-on-glucose-consumption-in-hepg2-cells
#3
Yilong Liu, Chuanhong Ren, Yunlin Cao, Yue Wang, Wenyi Duan, Linfeng Xie, Chongde Sun, Xian Li
Bergamottin is a natural furanocoumarin compound with weak polarity. Characterization and quantification of bergamottin were carried out in different fruit tissues of various citrus cultivars. Among the four citrus tissues tested, i.e., flavedo, albedo, segment membrane (SM), and juice sacs (JS) in eight citrus cultivars, the highest bergamottin content was found in the flavedo of Citrus grandis (L.) Osbeck cv. Yongjiazaoxiangyou (YJZXY, 666.54 μg·g(-1) DW). A combination of silica gel column chromatography and high-speed counter-current chromatography (HSCCC) was established to efficiently purify bergamottin from the flavedo of YJZXY...
July 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28726276/the-colonic-groove-of-the-plains-viscacha-lagostomus-maximus-histochemical-evidence-of-an-abrupt-change-in-the-glycosylation-pattern-of-goblet-cells
#4
María Florencia Tano de la Hoz, Mirta Alicia Flamini, Carolina Natalia Zanuzzi, Alcira Ofelia Díaz
The ascending colon of most rodent species shows a longitudinal colonic groove that works as a retrograde transport pathway for a mixture of bacteria and mucus toward the cecum. We describe the morphology and glycosylation pattern of the colonic groove of Lagostomus maximus to analyze the role of mucins in this anatomical feature. We also studied the distribution pattern of the interstitial cells of Cajal (ICC) to evaluate their regulatory influence on gut motility. The groove originated near the cecocolic junction and extended along the mesenteric side of the ascending colon, limited at both ends by nonpapillated ridges...
July 20, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28721931/ts-1-tegafur-gimeracil-oteracil-induced-systemic-lupus-erythematosus-with-skin-lesions-and-anti-sm-antibody
#5
Fumi Miyagawa, Yuka Sugano, Masayuki Sho, Hideo Asada
No abstract text is available yet for this article.
July 19, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28721826/clinical-uses-of-melatonin-in-neurological-diseases-and-mental-and-behavioural-disorders
#6
Emilio J Sánchez-Barceló, Noemi R Revilla, María D Mediavilla, Carmen Martínez-Cué, Russel J Reiter
Melatonin is a molecule with numerous properties applicable to the treatment of neurological diseases. Among these properties are the following: potent scavenger of oxygen and nitrogen reactive species, anti-inflammatory features, immuno-enhancing nature, and modulation of circadian rhythmicity. Furthermore, low concentrations of melatonin are usually found in patients with neurological diseases and mental disorders. The positive results obtained in experimental models of diverse pathologies, including diseases of the nervous system (e...
July 18, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28721050/the-use-of-natalizumab-for-multiple-sclerosis
#7
REVIEW
Rachel Brandstadter, Ilana Katz Sand
Natalizumab is a monoclonal antibody that acts as an α4 integrin antagonist to prevent leukocyte trafficking into the central nervous system. It is US Food and Drug Administration (FDA) approved for the treatment of relapsing-remitting multiple sclerosis (RRMS). Natalizumab demonstrated high efficacy in Phase III trials by reducing the annualized relapse rate, preventing multiple sclerosis (MS) lesion accumulation on magnetic resonance imaging, and decreasing the probability of sustained progression of disability...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28716233/-23-na-mri-reveals-persistent-sodium-accumulation-in-tumefactive-ms-lesions
#8
Konstantin Huhn, Angelika Mennecke, Peter Linz, Franz Tschunko, Nicola Kästle, Armin M Nagel, Michael Uder, Arnd Dörfler, Ralf A Linker, Tobias Engelhorn
BACKGROUND: Chronic inflammatory demyelinating diseases of the CNS typically show a limited lesion size. However, extended lesions may appear with an atypical configuration. Large lesions with a diameter>2cm accompanied by tumor-like edema are entitled "tumefactive" and may occur in multiple sclerosis (MS) and other demyelinating diseases. Historically, differential diagnosis often requires histological analysis. Therefore, advanced imaging techniques are warranted to allow for a precise non-invasive diagnosis...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28712890/amburana-cearensis-seed-extract-protects-brain-mitochondria-from-oxidative-stress-and-cerebellar-cells-from-excitotoxicity-induced-by-glutamate
#9
E P L Pereira, C S Santos, J Amparo, R Short, Y Nuñez-Figueredo, L G Fernandez, P R Ribeiro, S Braga-de-Souza, V D A Silva, S L Costa
ETHNOPHARMACOLOGICAL RELEVANCE: Amburana cearensis (Allemao) A.C.Sm. is a medicinal plant of the Brazilian Caatinga reported to present antioxidant and anti-inflammatory activity. This study aimed to evaluate the neuroprotective effect of the extracts obtained from the seeds of A. cearensis in primary cultures of cerebellar cells subjected to excitotoxicity induced by glutamate and brain mitochondria submitted to oxidative stress. MATERIALS: and methods: Primary cultures of cerebellar cells were treated with the ethanol (ETAC), hexane (EHAC), dichloromethane (EDAC) and ethyl acetate (EAAC) extracts of the seeds of A...
July 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28707358/suppressed-oligodendrocyte-steroidogenesis-in-multiple-sclerosis-implications-for-regulation-of-neuroinflammation
#10
Roobina Boghozian, Brienne A McKenzie, Leina B Saito, Ninad Mehta, William G Branton, JianQiang Lu, Glen B Baker, Farshid Noorbakhsh, Christopher Power
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS). Neurosteroids are reported to exert anti-inflammatory effects in several neurological disorders. We investigated the expression and actions of the neurosteroid, dehydroepiandrosterone (DHEA), and its more stable 3β-sulphated ester, DHEA-S, in MS and associated experimental models. CNS tissues from patients with MS and animals with experimental autoimmune encephalomyelitis (EAE) displayed reduced DHEA concentrations, accompanied by diminished expression of the DHEA-synthesizing enzyme CYP17A1 in oligodendrocytes (ODCs), in association with increased expression of inflammatory genes including interferon (IFN)-γ and interleukin (IL)-1β...
July 14, 2017: Glia
https://www.readbyqxmd.com/read/28707278/daclizumab-development-clinical-trials-and-practical-aspects-of-use-in-multiple-sclerosis
#11
REVIEW
Laura E Baldassari, John W Rose
Daclizumab is a humanized monoclonal antibody directed towards CD25, the alpha subunit of the high-affinity interleukin (IL)-2 receptor. Daclizumab exerts its effects via multiple mechanisms, including reduction of IL-2-mediated lymphocyte activation and upregulation of CD56-bright natural killer cells. Intravenous daclizumab (Zenapax™) was initially approved for prevention of rejection in renal transplant. In subsequent early testing, followed by larger-scale phase II and phase III trials, both intravenous and subcutaneous daclizumab have demonstrated clinical efficacy in the treatment of multiple sclerosis...
July 13, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28695471/ocrelizumab-and-other-cd20-b-cell-depleting-therapies-in-multiple-sclerosis
#12
REVIEW
Jeffrey M Gelfand, Bruce A C Cree, Stephen L Hauser
Selective depletion of CD20(+) B cells by anti-CD20 monoclonal antibodies as monotherapy in multiple sclerosis (MS) profoundly suppresses acute inflammatory disease activity and signifies an important advance in the treatment of relapsing-remitting MS. Ocrelizumab, a humanized anti-CD20 monoclonal antibody, is also the first proven therapy to lessen disability progression in primary progressive MS-a breakthrough for patients with a disease that had no proven therapy. Ocrelizumab is generally well tolerated, with the most common adverse events experienced being infusion reactions and infections...
July 10, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28693190/solamargine-inhibits-the-migration-and-invasion-of-hepg2-cells-by-blocking-epithelial-to-mesenchymal-transition
#13
Xiaodong Xie, Haitao Zhu, Jia Zhang, Meiqin Wang, Li Zhu, Zhen Guo, Wenrong Shen, Dongqing Wang
Solamargine (SM), a steroidal alkaloid glycoside purified from the Chinese traditional herb Solanum incanum, is known to possess various biological activities. However, only a few previous studies have reported the anti-metastatic activity of SM. In the present study, the inhibitory effects of SM on metastatic action were investigated in human HepG2 cells. The proliferation effects of SM on the HepG2 cells was evaluated by MTT and colony formation assays. Wound-healing and Transwell assays were performed to examine the migration and invasion effects on SM-treated HepG2 cells...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28689297/estrogen-protects-both-sexes-against-eae-by-promoting-common-regulatory-cell-subtypes-independent-of-endogenous-estrogen
#14
Hilary A Seifert, Gil Benedek, Ha Nguyen, Gail Kent, Arthur A Vandenbark, Halina Offner
Autoimmune diseases including multiple sclerosis predominantly affect females. Although high levels of sex hormones, particularly estrogen (E2), can reduce proinflammatory immune responses, it remains unclear if a lack of endogenous sex hormones might affect treatment with exogenous sex hormones. Pretreatment with E2 almost completely prevents intact female and male mice from developing clinical and histological signs of experimental autoimmune encephalomyelitis (EAE) by promoting various regulatory immune cell phenotypes...
July 8, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28687730/fluvoxamine-stimulates-oligodendrogenesis-of-cultured-neural-stem-cells-and-attenuates-inflammation-and-demyelination-in-an-animal-model-of-multiple-sclerosis
#15
Majid Ghareghani, Kazem Zibara, Heibatollah Sadeghi, Shima Dokoohaki, Hossein Sadeghi, Roya Aryanpour, Amir Ghanbari
Multiple Sclerosis (MS) require medications controlling severity of the pathology and depression, affecting more than half of the patients. In this study, the effect of antidepressant drug fluvoxamine, a selective serotonin reuptake inhibitor, was investigated in vitro and in vivo. Nanomolar concentrations of fluvoxamine significantly increased cell viability and proliferation of neural stem cells (NSCs) through increasing mRNA expression of Notch1, Hes1 and Ki-67, and protein levels of NICD. Also, physiological concentrations of fluvoxamine were optimal for NSC differentiation toward oligodendrocytes, astrocytes and neurons...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28686675/management-of-flu-like-syndrome-with-cetirizine-in-patients-with-relapsing-remitting-multiple-sclerosis-during-therapy-with-interferon-beta-results-of-a-randomized-cross-over-placebo-controlled-pilot-study
#16
Doriana Landi, Maria Albanese, Fabio Buttari, Fabrizia Monteleone, Laura Boffa, Silvia Rossi, Caterina Motta, Elisa Puma, Diego Centonze
BACKGROUND: Flu-like syndrome (FLS) is a common adverse event experienced by patients with relapsing-remitting multiple sclerosis (RRMS) treated with interferon beta (IFNβ). FLS can lead to poor treatment adherence and early IFNβ discontinuation. The involvement of interleukin-6 (IL-6) in the occurrence of FLS has been suggested. We hypothesized that cetirizine, a second-generation histamine H1 receptor antagonist able to reduce the levels of IL-6, might improve IFNβ-induced FLS. METHODS: We conducted a pilot, cross-over, randomized, placebo-controlled, double-blind study to evaluate the efficacy of cetirizine 10 mg added after each IFNβ injection to the standard of care for FLS (acetaminophen or nonsteroidal anti-inflammatory drugs) on FLS in patients with RRMS treated with IFNβ...
2017: PloS One
https://www.readbyqxmd.com/read/28684154/coexistence-of-multiple-sclerosis-and-ankylosing-spondylitis-report-of-four-cases-from-russia-and-review-of-the-literature
#17
Vera Fominykh, Tatyana Shevtsova, Narine Arzumanian, Lev Brylev
Multiple sclerosis is a chronic demyelinating disorder of the central nervous system. There are many cases of multiple sclerosis - like syndrome and demyelinating disorders in systemic lupus erythematosus, Sjogren disease, Behcet disease and other autoimmune conditions. Coexistence of ankylosing spondylitis and multiple sclerosis usually is rare but in this article we report 4 Russian patients with concomitant multiple sclerosis and ankylosing spondylitis diseases. None of these patients received anti-tumor necrosis factor alpha therapy prior to diagnosis of multiple sclerosis...
July 3, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28684074/the-impact-of-surgical-intervention-and-antibiotics-on-mronj-stage-ii-and-iii-retrospective-study
#18
Matthias Zirk, Matthias Kreppel, Johannes Buller, Julij Pristup, Franziska Peters, Timo Dreiseidler, Max Zinser, Joachim E Zöller
OBJECTIVES: Metastatic bone disease and osteoporosis are the main indications for bisphosphonates and anti-resorptive agent therapy. Inhibition of bone turnover and angiogenesis are mainly responsible for the development of Medication Related Osteonecrosis of Jaws (MRONJ) as therapeutic side-effect. Yet, the role of infection for the development and recurrence of MRONJ is not fully elucidated. The aim of this retrospective study is to explore if a difference in antibiotic regimes has an impact on the surgical intervention needed to achieve a painless stable stage of the disease...
June 4, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28680086/host-age-and-expression-of-genes-involved-in-red-blood-cell-invasion-in-plasmodium-falciparum-field-isolates
#19
Aida Valmaseda, Quique Bassat, Pedro Aide, Pau Cisteró, Alfons Jiménez, Aina Casellas, Sonia Machevo, Ruth Aguilar, Betuel Sigaúque, Virander S Chauhan, Christine Langer, James Beeson, Chetan Chitnis, Pedro L Alonso, Deepak Gaur, Alfredo Mayor
Plasmodium falciparum proteins involved in erythrocyte invasion are main targets of acquired immunity and important vaccine candidates. We hypothesized that anti-parasite immunity acquired upon exposure would limit invasion-related gene (IRG) expression and affect the clinical impact of the infection. 11 IRG transcript levels were measured in P. falciparum isolates by RT-PCR, and IgG/IgM against invasion ligands by Luminex®, in 50 Mozambican adults, 25 children with severe malaria (SM) and 25 with uncomplicated malaria (UM)...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28677901/big-conductance-calcium-activated-potassium-channel-openers-control-spasticity-without-sedation
#20
David Baker, Gareth Pryce, Cristina Visintin, Sofia Sisay, Alexander I Bondarenko, W S Vanessa Ho, Samuel J Jackson, Thomas E Williams, Sarah Al-Izki, Ioanna Sevastou, Masahiro Okuyama, Wolfgang F Graier, Lesley A Stevenson, Carolyn Tanner, Ruth Ross, Roger G Pertwee, Christopher M Henstridge, Andrew J Irving, Jesse Schulman, Keith Powell, Mark D Baker, Gavin Giovannoni, David L Selwood
BACKGROUND & PURPOSE: The initial aim was to generate cannabinoid agents that control spasticity, occurring as a consequence of multiple sclerosis, whilst avoiding the sedative, side-effect-potential associated with cannabis. (R,Z)-3-(6-(dimethylamino)-6-oxohex-1-enyl)-N-(1-hydroxypropan-2-yl)benzamide (VSN16R) was synthesized as an anandamide (endocannabinoid) analogue in an anti-metabolite approach to identify drug-like agents to target spasticity. EXPERIMENTAL APPROACH: Following the initial chemistry, a variety of biochemical, pharmacological and electrophysiological approaches, using isolated cells, tissue-based assays and in vivo animal models, were used to demonstrate: activity, efficacy, pharmacokinetics and mechanism of action of the molecule...
July 5, 2017: British Journal of Pharmacology
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